Filing post for loose-leaf ledgers and like binders



'July 10,1928.

1,676,968 H.l B. STONE FILING POST FOR LOOSE LEAF LEIDGERS AND LIKEBINDERS Filed June 9, 1924,

ArTaQNfY Patented July 10, 1928.

PATENT OFFICE.

HOWARD BRITTEN STONE, OF LONDON, ENGLAND.

FILING POST FOB LOOSE-LEAF LEDGERS AND LIKE BINDEBS.

Application led I une 9, 1924, Serial No. 718,908, and inGreat BritainJune 19, 1923.

This invention `relatesto improvements in.

tiling posts for loose` leaf ledgersor like binders, and moreparticularly to such posts the exterior shape of which approximates to arectangle, constructed for example from flattened tubular material.

According to this invention posts or' substantially rectangularcross-section with rounded edges are built up of separate and separableparts or sections connected together by suitable tenon like joints whichadmit of attachment and detachment without screwing.

ln the accompanying drawings:

Figure l is a side view of three parts or sections of a tiling` post,joined together in accordance with this invention.

Figure 2 is a similar view showing one part or section partly detachedfrom. the adjacent part or section, and

Figure is an edge View thereof. t

Figures l and 5 show sectional views of an intermediate part or sectionof afiling post.

Figures (i and 7 are views, partly in section, of the end parts orIsections of a filing ost. v p As shown in Figures 4 and 5, each part orsection is formed of lattenedtubular `materiale and has a plate bheldtherein by a rivet c, this plate projecting from one end oi thetubular part a so as to form a tenon el. This tenon is of quadrant shapewith a notch e in that part of the longitudinally extending straightedge thereof which pro jects beyond the end edge of the tubular part a.The plate b is cut away at its opposite end to form a mortise f toreceive a tenon similar to the tenon d, ot' another post, and thetubular part a is provided with an inwardly projecting lug or lip gintended to enter the notch e of the tenon d ot' the other ost which isinserted in this end oi the tu ular part, thus to holding together twosimilar post arts or sections.

The lug g is ormed with an extension `forming a :fiat member g extendinglongitudinally of the tubular part a between the quadrantal walls of themortise f.

The lug g, as shown, is formed by a separate part for convenience ofmanufacture, and is held firmly in place by a single rivet, with one ofits edges resting flatly against the interior wall ot' the part a, orthe lug g may be made integral with the plate Z).

The centers of curvature ot' the quadrantal portion of the tenon d, ofthe mortise f and of the curved portion of the lug or lip g of each partor section lie immediatel side of one of the vertical sides of suc ipart or section. l n

Terminal part-s for a composite post, such as the part li in Figure 6which has a tenon CZ only, or the part y' in Figure 7 which has amortise j' and lug g but no tenon, are provided.

This method of connection makes it possible to secure together or toseparate parts of substantiall 1 rectangular cross section as desired,in or er to vary the lengt-h ot' the po-st built up ot such parts.Figure 2 shows the upper' part or section partly engaged on out thetenon ofthe next section so that it can be brought into alignment withtheother sections by turning it in 011e direction or detached by turningit in the opposite direction. notch e to be brought into engagement withthe lug or lip g within the mortise fof another post part or section soas to hold these postparts attached togetheragainst a pull exerted inthe direction of the length of the post, and the tenon and mortiseprovide a joint having a very substantial lateral stiffness.

Figure A.L shows a post section built up of three parts a, Z), andgriveted together; Figi-` ure v6 shows an end post section cut from asingle piece ot' material with a tenond formed integrally therewith; andFigure 7 shows an end section comprising one part having a mortise f cuttherein and a lug or lip g secured in this mortise byv means ot a rivet.ever, be built up of parts, or formed in a single piece, as may be mostconvenient, taking' into consideration the precise` shape to be given tothese parts. For example, the post section shown in Figure l may be madein one piece by making one end thereof as shown in Figure 6 and theother end as shown in Figure 7.

I claim: j

l. A filing post sect-ion comprising a body portion having a mortise inone end thereof formed with a quadrantal wall of less extent than aquarter of a circle, a .lug extending into the said mortise and having aquadrantal wall of less extent than a quarter of a circle set oppositeto the quadrantul wall of the mortise, and a tenon having opposite Thecurved edge of the tenon allows the Each of the-se post. parts may,how-V quadrantal edges each of less extent than a quarter of a circleextending`r from the other end of said body portion.

2. A filing post embodying sections each comprising a body portionhaving `inione of its ends a recess provided with an arcuate wall toform a inortise, a lug iixedly secured in said mortise and having anarcuate wall opposite the arcuate wall of said recess, and a tenoncarried by the opposite end of ,'-aid body portion y and provided witharcuate edges corresponding, respectively, in curvature and length tothe curvature and length of the arcuate Valls oi the niortise and thelug.

3. AY tiling post section comprising a flattened tubular portion, a.plate riveted Within the tubular portion, an extension oi the said plateat one end thereof projecting outside the tubular portion to forni atenoii of annular segmental shape of less extent than a quarter of acircle, a curved wall iornied on the other end of the plate to provide ainortise, and a lug fixedly .secured within this mortise and having acurved wall arranged opposite to they curved wall ol the plate.

4i. A filing post section coi'iiprising a body portion, having a mortisein one end thereof toi-med with a quadrantal wall, and a lug ixedlysecured in the said mortise and having a quadrantal wall of equalangular extent arranged opposite tothe quadrantal wall of the mortiseand spaced apart therefrom.` 4

5. A' tiling post section comprising a body portion and a'ii annularsegmental tenen of less extent than a quarter of a circle extending fromone end thereof and within the width thereof. y

6. A filing post section comprising a body portion having at one end acurved Wall recessed therein to forma mortise, a. lug having a curvedWall opposite to the said i'ecessed curved Wall, and an annularsegmentaltenon of less extent than a quarter ol a circle carried by the other endoi said body, said teiion having curved edges equal in length andcurvature to the said curved walls, respectively.

7. A filing post section eoniprisiiig a body portionhaving at one end acurved wall recessed therein to form a inortise, a lug having a curvedWall opposite to said recessed curved wall and spaced apart therefrom,and a tenon carried by the other end of said body portion andcorresponding in shape to the space between said curved Walls.

8. A tiling post section comprising a flattened tubular portion, a plateriveted williiii said tubular portion, said plate having an extensionprojecting beyond one end ol said tubular portion to forni aquadrantaltenori, said tenon having a longitudinally disposed fiat face, the otherend of said plate having a curved Wall forming a mortise with theinterior of said tubular portion, a lug secured within said inoi'tiseand having a curved wall opposite to the curved Vall ol said plate, anda liat member extending longitiidinally of said tubular poi-tion betweenthe ends of said curved walls.

9. A tiling post section comprising a body portion having a mortise witha quiulrantal wall, a lug Within the inortise having a qiiadrantal Wallopposite to the quadrantal Wall of the niortise, a flat member extendinglongitudinally of said body portion between the ends of said quadrantalWalls, and a quadrantal tenon extending 'from the other end of said bodyoition and having walls similar to the qua rantal Walls of the niortiseand a longitudinally disposed terminal fiat face.

HOWARD BRITTEN STONE.

